Joseph a



- (No Model.)

J. A. BOBISON.

TREADLB. No. 283,514. Patented Aug. 21, 1883.

L c fiy H I I l 1 v 21 .WIT ssns: INVBNTOR: ./5 BY V ATTORNEYS.

UNITED STATES PATENT Guinea TREADLE.

SPECIFICATION forming part of Letters Patent No. 283,514, dated August21, 1883.

Application filed June 13, 1883. (No model.)

T all whom it may concern.-

Be it known that I, J osnrn' A. Ronrson, of New Vashington, in thecounty of Clark and State of Indiana, have invented a new and ImprovedAttachment for Treadles, of which the following is a full, clear, andexact description. 1

The object of my inveiition is to provide a new and improved attachmentfor treadles for sewing-machines, foot-lathes, &c., whereby theoperating of the treadle'is greatly facilitated: The invention consistsin a weight held on the upper end of a frame secured on the treadleabove the treadle-shaft, which weight can be provided with aspring'attached to the weight and to the frame, and which weight assistsin depressing the toe end of the treadle.

The invention also consists in various parts and details andcombinations of the same, as will be fully described andset forthhereinafter. Reference is to be had to the accompanying drawings,forming part of this specification, in which similar letters ofreference indicate corresponding parts in both the figures.

Figure 1 is a longitudinal elevation of a treadle provided with myimproved attachment. Fig. 2 is a plan view of the same, parts beingbroken away. A A-shaped or other suitable frame, A, is 0 fastened to oneside of the treadle Bin such a manner that it projects upward from thesame, one of the shanks of the said frame being attached to the treadleat each side of the treadleshaft F. The shank toward the heel end of 3 5the treadle is longer than the shank toward the toe end, so that whenthe treadle is inclined from the front to the rear the middle of theframe will be vertically above the treadleshaft, as shown.

An arm, 0, projecting in the direction from the treadle, is formed onthe upper end of the frame A, and on the said arm a block or weight,

D, of about from five to seven pounds, is hung loosely. A spiral spring,E, has one end se- 5 cured on the lower end of the weight, and the otherend is secured to the arm 0, which spring tends to hold the weightparallel with the longitudinal axis of the frame A.

If the toe end of the treadlc is depressed slightly, theweight D will beswung beyond the vertical line of the treadleshaft, and will thus assistin moving the toe end of the treadle downward ,thereby faeilitati ng theoperating of the treadle, as it requires much more labor and power todepress the toe end of a treadle than 5 to depress the heel end. Theweight thus relieves the operator of considerable strain, permitsoperating the treadle with less exertion of power on the toe end, andgives the treadle an easy and regular movement.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent 1. Atreadle attachment made substantially as hereinshown and described, and consisting of aframe projecting upward from thetreadle and having a weight on its upper end, as set forth.

2. The combination, with a treadle, of a frame projecting upward fromthe same, a weight held on the upper end of the frame, and a springsecured to the weight and frame,

substantially as herein shown and described,

and for the purpose set forth.

3. The combination, with a treadle, of a 7 frame secured on the sameabove the treadleshaft, in such a manner that the upper end of the framewill be vertically above the treadleshaft when the heel end of thetreadle is lowcred, and a weight on the upper end of the frame,substantially as herein shown and de scribed, and for the purpose setforth.

4. The combination, with a treadle, of a A-shaped frame having. a shortand along shank, the long shank of the frame being fastened to thetreadle between the heel end of the same and the treadleshaft, and theshort arm being fastened to the treadle between the toe end and theshaft, and of a weight on the upper end of the frame, substantially asherein shown and described, and for the purpose 9o set forth.

JOSEPH A- ROBISOl L \Vitnesscs:

ELMER E. SHILLING, H. F. PHILIrrr.

